MAINTENANCE
SECTION 5
CMD-3967823 / 90-865237030 OCTOBER 2003 Page 77
6. Move plunger on hand pump/primer up and down repeatedly, until an air free stream of
fuel flows from temporary hose.
77343
b
a
77761
a-Plunger
b-Fuel from temporary hose
7. Remove temporary hose. Unplug and install boat fuel return hose on fitting. Securely
tighten the hose clamp.
77343
a
b
a-Fuel return hose
b-Hose clamp
8. Move plunger knob up and down several times until some added resistance is noticed
when knob is moved.
9. Check for fuel leaks.
10. Dispose of waste fuel as defined by local authorities.
11. Start the engine, check for fuel leaks. If leaks exist, stop the engine immediately and
recheck installation.
NOTE: In some circumstances, it may be necessary to bleed (purge air) from the injectors
if the engine does not readily start. Contact an authorized Cummins MerCruiser Diesel
dealer / distributor.
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